I want to replace all the speakers (tweeters, front/back doors, subwoofer) what channel amp do I need? A 6 channel amp? Any suggestions that aren't $300? I know you get what you pay for though.

 

Coupe: 6 channels. For a budget like that, get a 4-channel amp, power the front doors & tweeters and the rear 6x9s from it. Don't use the rear side speakers at all.

Sedan: 5 channels. For a budget like that, also go with a 4-channel amp. Power the front doors & tweeters off two of the channels, and bridge the 3rd and 4th channels to power the rear deck sub. Don't use the rear door speakers at all.

 

How in the world do I take the back subwoofer out? I can easily go under it through the trunk. Do I need to take the rear deck apart as well? Thank you for your time.

 

http://www.sonicelectronix.com/item_...RZ5-2500D.html

Check out that amp. It's a pretty affordable 5-channel and it can handle 2 ohms through the speakers and sub.

I plan on getting that, running 2 midbass woofers in the back, 2 6.5 components up front with new tweets, and a couple 6.5" real subwoofers on the rear deck (I'll make a 6x9-6.5 MDF adapter) For the subs I'm torn between JL 6W3V3 or Massive Audio SUMMO 64.

 

Yes, you have to remove the rear deck, which means you have to remove the rear seats and rear c pillar trim.

 

Yes, I never found a diy on how to remove sub from sedan, but it's basically the exact same steps as the diy to replace 3rd brake light. I found a video for that. I tried it and I would highly not recommend swapping the stock sub out. It sounds horrible, I bought the jl 8 inch w3 or something like that and it rattles the while deck. Not good insulation, and they told me it would cost a lot to insulate so I replaced for a 12 inch sub with box. A lot happier

 

I found some online on ebay going for a fair price.